diff --git a/Cargo.toml b/Cargo.toml
index 5ae51301f..0959e3d88 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -174,6 +174,7 @@ feat_os_unix_gnueabihf = [
 feat_os_unix_musl = [
   "feat_Tier1",
   #
+  "feat_require_crate_cpp",
   "feat_require_unix",
   "feat_require_unix_hostid",
 ]